<script setup>
import { onMounted, ref } from 'vue';
import { useRoute } from 'vue-router';
import { getCategoryFilterAPI, getSubCategoryAPI } from '@/apis/category';
import GoodsItem from '../Home/components/GoodsItem.vue';

// 面包屑导航数据
const route = useRoute();
const categoryData = ref([]);
const getCategoryData = async (id = route.params.id) => {
  await getCategoryFilterAPI(id).then((data) => {
    let { code, result } = data;
    if (code === '1') {
      categoryData.value = result;
    }
  });
};
onMounted(() => getCategoryData());

// 获取基础列表渲染
const goodList = ref([]);
const reqData = ref({
  categoryId: route.params.id,
  page: 1,
  pageSize: 20,
  sortField: 'publishTime',
});
const getGoodList = async () => {
  await getSubCategoryAPI(reqData.value).then((data) => {
    let { code, result } = data;
    if (code === '1') {
      goodList.value = result.items;
    }
  });
};
onMounted(() => getGoodList());

// tab 切花回调
const tabChange = () => {
  reqData.value.page = 1;
  getGoodList();
};

// 加载更多
const disabled = ref(false);
const load = async () => {
  // 获取下一页数据
  reqData.value.page++;
  const items = await getSubCategoryAPI(reqData.value).then((data) => {
    let { code, result } = data;
    if (code === '1') {
      return result.items;
    }
  });
  goodList.value = [...goodList.value, ...items];
  // 加载完毕停止监听
  if (items.length === 0) {
    disabled.value = true;
  }
};
</script>

<template>
  <div class="container">
    <!-- 面包屑 -->
    <div class="bread-container">
      <el-breadcrumb separator=">">
        <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item :to="{ path: `/category/${categoryData.parentId}` }"
          >{{ categoryData.parentName }}
        </el-breadcrumb-item>
        <el-breadcrumb-item>{{ categoryData.name }}</el-breadcrumb-item>
      </el-breadcrumb>
    </div>
    <div class="sub-container">
      <el-tabs v-model="reqData.sortField" @tab-change="tabChange">
        <el-tab-pane label="最新商品" name="publishTime"></el-tab-pane>
        <el-tab-pane label="最高人气" name="orderNum"></el-tab-pane>
        <el-tab-pane label="评论最多" name="evaluateNum"></el-tab-pane>
      </el-tabs>
      <div
        class="body"
        v-infinite-scroll="load"
        :infinite-scroll-disabled="disabled"
      >
        <!-- 商品列表-->
        <GoodsItem v-for="goods in goodList" :goods="goods" :key="goods.id" />
      </div>
    </div>
  </div>
</template>

<style lang="scss" scoped>
.bread-container {
  padding: 25px 0;
  color: #666;
}

.sub-container {
  padding: 20px 10px;
  background-color: #fff;

  .body {
    display: flex;
    flex-wrap: wrap;
    padding: 0 10px;
  }

  .goods-item {
    display: block;
    width: 220px;
    margin-right: 20px;
    padding: 20px 30px;
    text-align: center;

    img {
      width: 160px;
      height: 160px;
    }

    p {
      padding-top: 10px;
    }

    .name {
      font-size: 16px;
    }

    .desc {
      color: #999;
      height: 29px;
    }

    .price {
      color: $priceColor;
      font-size: 20px;
    }
  }

  .pagination-container {
    margin-top: 20px;
    display: flex;
    justify-content: center;
  }
}
</style>
